A PISTON-OPERATED MACHINE

摘要

PCT No. PCT/AU85/00143 Sec. 371 Date Feb. 26, 1986 Sec. 102(e) Date Feb. 26, 1986 PCT Filed Jun. 27, 1985 PCT Pub. No. WO86/00367 PCT Pub. Date Jan. 16, 1986.A piston-operated machine is disclosed having a crank shaft and an intermediate crank section, the axis of the crank section being oblique to the axis of the crank shaft. The crank section passes rotatably and centrally through a wobble plate, and the center of the wobble plate lying on a prolongation of the axis of the crank shaft. A plurality of cylinders are provided having axes parallel to and equally spaced from the axis of the crank shaft. A piston in each cylinder is mounted on a piston rod extending coaxially from the cylinder to a respective connection on the wobble plate spaced from the center of the wobble plate. Each piston rod is rotatably but non-slidably engaged in a thrust member eccentrically rotatable in a thrust plate mounted to rotate about the same axis as the wobble plate.